mapclient.java

丰顺直不遥喹顺是中哽 亘古未有唱喏3 虽虽虽虽于砂隔日 产是

import javax.microedition.io.* ;
import javax.microedition.midlet.* ;
import javax.microedition.lcdui.* ;
import java.io.* ;
 
public class SocketConnent extends MIDlet implements CommandListener , Runnable
{
  private Display display ;
  private Form frm ;
  private Command c1  ;
  private Command c2  ;
  
  private SocketConnection conn ;
  private InputStream is ;
  private OutputStream os ;
  private DataInputStream dis ;
  private DataOutputStream dos ;
  
 
  public SocketConnent()
  {
    display = Display.getDisplay(this) ;
    
    frm = new Form("Socket Test1") ;
    c1 = new Command("Exit" , Command.EXIT , 0) ;
    c2 = new Command("OK" , Command.OK , 0) ;
 
    frm.addCommand(c1) ;
    frm.addCommand(c2) ;
 
    frm.setCommandListener(this) ;
  }
 
  public void startApp()
  {
    display.setCurrent(frm) ;
  }
 
  public void pauseApp()
  {
  }
 
  public void destroyApp(boolean con)
  {
  }
  
  public void commandAction(Command c , Displayable a)
  {
    if(c.getLabel() == "Exit")
    {
      destroyApp(true) ;
      notifyDestroyed() ;
    }
 
    if(c.getLabel() == "OK")
    {
      Thread t1 = new Thread(this) ;
 
      t1.start() ;      
    }
  }
 
  public void run()
  {
    conn = null ;
    is = null ;
    os = null ;
    dis = null ;
    dos = null ;
 
    try
    {
      conn = (SocketConnection) Connector.open("socket://163.25.101.160:122") ;
      is = conn.openInputStream() ;
      dis = new DataInputStream(is) ;
      
      int size = Integer.parseInt( dis.readUTF() ) ;
 
      frm.append(Integer.toString(size)) ;
      
      byte [] data = new byte[size] ;
//------------修改部分--------------------------------------------------------------------------------------------
 
      int length = 0   ;
 
      while(length < size) 
      {
        final int read = dis.read( data , length , size - length) ;
        
        if(read != -1)
          length = length + read ;
        else
          break ;
      }
//--------------------------------------------------------------------------------------------------------------
 
      Image img = Image.createImage(data , 0 , size) ;    
 
      frm.append(img) ;  
 
      is.close() ;
      dis.close() ;
      conn.close() ;
      
      
    }
    catch(Exception e)
    {
      frm.append(e.toString())  ;
    }
  }  
}